Multiple-record-repeating phonograph



I C. M. HECK.

MULTIPLE RECORD REPEATING PH ONO GRAPH.

APPLICATION FILED MAY 6.1915. 1,342,442. I Patented June 8, 1920.

' I 5 SHEETSSHEET 1.

C. M. HECK.

'MULTIPLFBECORDREPEATING PHONOGRAPH.

APPLICATION mm MAY 6 .1915.

Patented June 8, 1920.

5 SHEETS-SHEET 2.

c. M. HECK. MULTIPLE RECORD REPEATING PHONQGRAPH.

APPLICATION FILED MAY 6, 1 915:- 7 1,342,442. PatentedJuneS, 1920.

5 SHEETS-SHEET a.

mm M/\ HECK.

C. M MULTIPLE RECORD REPEATING PHONOGRAPH.

APPLICATION FILED MAY-6,1915.

Patented June 8, 1920.

5 SHEETSSHEET 4.

C. M. HECK.

MULTIPLE RECORD REPEATIN'G PHONOGRAPH.

APPLICATION FILED MAY 6. 1915.

1,342,442, Patented June 8, 1920.

5 SHEETSSHEET 5.

' To all whom it may concern:

A UNITED [STATES PATENT OFFICE. Y

CHARLES M. HECK, OF RALEIGH, NORTH CAROLINA.

MULTIPLE-BECORD-REPEA TING PHOIN'QGRAPH.

Be it known that I, CHARLES M. IIEoK, a citizen of the United States, residing at Raleigh, in the county of Wake and State of North Carolina, have invented new and useful Improvements in Multiple-Record- Repeating Phonographs, of which'the following is a specification.

' This invention relates to records for sound reproducing mechanisms, and to apparatus f recording and reproducing apparatus, and

means cooperating there ith, to selectively make or reproduce recor s on the walls of said multiple record groove. A further object is to provide a'sound reproducing apparatus which is capable of reproducing a 'record irrespective of whether the same 18 made with a groove varying vertically as to depth, or has its sides varymg laterally. A 7 further object is to provide a sound recording and reproducing apparatus, constructed to simultaneously or selectively record or reproduce, with a single groove, two or more recorded selections. A further object is to provide means whereby a groove that varies both vertically and laterally may be utilized for recording and reproducing sound. I 1

The invention will be hereinafter fully set forth and particularly pointed out in the 'claims. Y

In the accompanying drawings Figure -1 is a dlagrammatic sectional View,

. illustrating a sound record made in accord- "ance with the inventiton. Fig. 2 is a side i I view of a sound reproduclng apparatus capable of use in connection with such a record. Fig. 3 is a plan view of a portion.

thereof. Fi 4: is a detail view of the controlling device. Fig. 5 is an enlarged detail :view illustrating dia hragms and styli cooperatingtherewith-For operating both vertically and laterally. Fig. 6 is an enlarged Specification of Letters Patent.

Patented June 8, 1920.

Application filed. May 6. 1915. Serial No. 26,335.

detail view thereof, Figs. 7 and 7? are detail views illustrating the method of recording both types of sound vibration. Figs. 8 and 8 show a modified form of reproducing instrument. Fig.9 is a view of the automatic device by means of which the desired record within the record groove is selected. Figs. 10, 11 and 12 are detail views lllustratlng the manner in which the stylus engages the record. Figs. 13, 14, 15, 16, and 17 are enlarged views of details of the reversing mechanism. Fig. 18 is a detail view of one of the tappets. Fig. 19 is a detail sectional View of the setting cam and its operating arm.

Referring to the drawings, 10 designates the body of a sound record, which may be provided with a flat surface, or a convexed surface, which surface contains a groove adapted to be moved with respect to a needle or stylus. Said body maybe constructedof any of the well known or preferred materials. In'the bottom wall 11 of said groove is formed a record. 11 produced by vertical movements of a recording stylus. In

the vertical wall 12 of said groove is formed,

a sound record 12, produced by a movement of a recording stylus, laterally with'respect to the middle of the groove, and a similar sound record'13 is produced in the wall 13 Y of said groove, the result being that three stylus 18, said lever being pivotally supported at; 19, in aurnovable weighted member 20, providing a floating fulcrum for saidv lever, the construction referred to being m similarto the well known hill and dale type.

A vertically disposed-diaphragm 21, is connected with a. support 22, provided with a mounted to vibrate laterally. v The stylus 18 is adapted to cooperate with the record 11, and the stylus 23'to cooperate with the records 12* and 13. The movement of the suitable holder" for a stylus -or needle 23,

weight 20, is adjusted by an arm 24, 0011- nected to said weight, and provided with an overhanging portion adapted to contact with preferably provided with a wheel, movable upon an axis parallel with the surface of said body. The upper end of the leg 27 is provided with a threaded shank, engaged by an adjusting nut 29, said nut being also provided with a cam roove 30, engaging the end of lever 25. n operation, by adjusting the nut 29, the foot 28 pressing against the record raises or lowers 22 and with it the end of the tone arm is raised. 'VVhen the end of the tone arm is raised, the stylus 23 is raised out of contact with the record, and the stylus 18 only, is allowed to act. When 22 is lowered, the stylus 23 is lowered, and the cam groove 30, acting on the lever 25, lifts the arm 24 and the wei ht 20, thereby elevating the stylus 18. 0am groove 30 is provided with a return groove, in which the end of lever 25 runs, and when lever 25 reaches the point 30 in said return groove the leg 27 has been so adjusted as to permit both styli to engage the record surface. By means of this 'arrangement, the weight 20 remains lowered, while 28 is also lowered and the stylus 23 engaged with the record..

In order to maintain the stylus 23 in contact with either of the records 12 or 13, various means may be provided, one of which is illustrated in Figs. 2, 3 and 4. Referring to said figures, the diaphragms heretofore described, communicate their vibra tions to the space within a suitable tone arm or amplifying device 31, pivotally mounted upon the end of a chamber 32, and having a pivot pin 33 rigidly secured in a bracket 34, suitable sound insulating material 35 being interposed between said .bracket and the tone arm 31. The pivot 33 conformsto the axis of the chamber 32. The upper end of said pivot is mounted in an arm 36, supported in a suitable manner, and rotatably supported in said arm is a shaft 37, provided with a gear 38, which meshes with a pinion 39, on the pivot pin 33. Secured to the pin 33 are,-- two oppositely wound spiral springs 40, 41, said springs being anchored'to a depending, portion 43 of the arm 36. Pivotally supported by the shaft '37, are pawls 44, normally held in engagement with teeth 45, formed in-the wall of'the recess-.46, in arm 36, by-means of a suitable spring 44. The pawls may be disengaged from the teeth in any suitable or preferred manner. In Fig. 2, the construction designed for this purpose comprises a cap 47, normally held elevated by a spring 48, said cap being carried by the The shaft'37, and arranged to effect disconnection of the pawls with respect to the teeth 45, when said cap is depressed. Said cap is connected with the shaft 37, so as to r0- tate therewith, and a suitable pointer 49 is provided. By depressing the cap 47, and turning it in either direction, one or the other of the springs 40 or 41, is placed under tension, and as a consequence the spring that is wound up, tends to force the'tone arm 31, and the stylus cooperating therewith, to one side. When it is desired to keep the stylus in contact with the record 12, the pointer 49 is moved from the zero position (Fig. 4), toward the position marked Inside wall, the movement being in a clockwise direction. The effect of this is to wind the spring 40, placing sufficient tension upon the tone arm 31, to hold the stylus in contact with the wall 12. The degree of pres- Sure upon the stylus may be varied according to the nature of the selection represented by the record, the degree of the pressure being indicated by the words Hard and Soft. When it is desired to retain the stylus in contact with the record 13*, the rotation of the shaft 37, is reversed, to wind the spring 41a The groove in the record body, is preferably made of a width that will be just sufiicient to permit the stylus to coiiperate with the record without contacting with the opposite wall.

In Fig. 7 is illustrated a horn subdivision by means of. which records of the lateral type may bemade simultaneously with a record of the vertical type. The said device comprises a horn 50, which leads to a llOI'lzontal diaphragm 53, and a second horn 51,

between arm 58 and the diaphragm 59 is made by means of a link 58, so that the arm 58 may move parallel with the diaphragm, causing little, if any motion, to be given to the diaphragm when the stylus moves vertically. aid diaphragm may also be mounted on the arm 58, as shown in Fig. 8, as a floating weight for the vertical vibration.

The operation necessary in making a rec- 0rd of the character above described, de-

pends upon the action of the machine used .in recording. If the machine has no reversmg mechanism for its motor, each rec-- ord may be made independently, using the vertical diaphragm for the side walls of the groove, and the horizontal diaphragm for the bottom of the groove. To make a groove on a side wall, the nature of the stylus usedfor recording, depends upon the incline of the wall of the groove. If the incline is slight, the stylus should have a cutting surface presented to the wall, extending above the point of contact, so that it will make a clearcasting or mold. Such a stylus and surface are illustrated in Fig. 10, and in Fig. 11 is illustrated a surface having a greater incline. The groove illustrated in these figures is neither the hill anddale, nor a true Beliner type. It will be noted that the stylus clears the bottom of the groove,

leaving unrecorded walls extending up a short distance from the bottom of the groove to insure the proper tracking of the stylus in the bottom of the groove. This clearance is accurately controlled by the fine pitch of the nut 29.

As a result of the invention, a compound groove may be produced, that is, a groovemade by uniting two motions .at right angles in a single stylus. One motion is communicated to it by the vertical diaphragm, which cuts into the side wall of the groove, and simultaneously, a horizontal diaphragm imparts a vertical motion. Fig. 12 illustrates a stylus operating in a groove, in the above manner. The point of the stylus is sharpened at an angle equal to the wall taneously recorded by the stylus best suited thereto. Or a division of the horn may be made or two horns used, as suggested in Fig. 7, so that only one part falls on one di'a'phragmi. 6., a surface varying in more than one plane. In any of these cases, the

'methods of reproduction and of recording are so similar, as to be practically the same, and the variation of apparatus to meet either function does not entail any essential difference. The terms recording and re producing have therefore been employed .herein as interchangeable.

Thesystem hereinbefore described, isbest used with a record made on one side of the groove, to be operated with the record body moving in one direction, and a record on the bottom, or other side of the groove, to be layed by reverse rotation of the record ody. The automatic reverse -mechanism illustrated makes this possible both in. recording and reproducing.

In Fig.9 is illustrated mechanism foreffecting an automatic reversal of the rotation 1 yieldingly of the record body, when the stylus has reached the end of one of the records in the record groove. Referring to said figure, 60 designates a motor operatively connected to a drive shaft 61,- provided with oppositely disposed, spaced'apart bevel gears 62, 63, said shaft 61 being longitudinally movable to bring either of said gears. into mesh with a pinion 64, attached to the disk shaft 65, to which the record-supporting platen 66 is attached. Secured to shaft 61 are spaced apartdisks 67, 68, provided with peripheral projections 69.

Mounted to rotate between the disks 67 and 68, and at right angles to the axis of said disks, is a cam shaft 70, provided with a cam 71, arranged to engage either of said disks to effect longitudinal movement of the shaft 61. Pivotally attached to the cam shaft 70, are operating arms 72, 73, each normally held in a predetermined horizontal position, by springs 74, said arms overhanging the respective disks 67 and 68,'but normally clearing the projections 69. Pivoted to the frame of the machine, is a cam lever 7 5, having the cam portion 76, which is normall held elevated by means of a spring 77, bearing upon the other end of the lever. Said lever is mounted to work in a guide 78, which serves to prevent .lateral move-. ment of the lever. To the upper end of the cam shaft 70, is attached a pointer 79, located over and cooperating with a scale containing legends such as Automatic off,

Ri ht and Left.

ounted in suitable bearings, is a set ting shaft 80, provided with loosely attached setting members 81, 82, each of. said setting members being of approximately sector shape and provided, with an abutment 83.

, Springs 84, attached to collars carried by the shaft 80, serve to, normally move the abutments 83 toward each other, so as to embrace or engage either sideof a depending portion 85, of an operating arm 86, attached to the base of the tonearm 87, so as to swing with said arm. The setting members are normally held against pivotal movement on the shaft 80, under-tl1e influence of springs 84, by means of clutch levers 88, pivotally sup ported by the shaft 80, and heldin engagement with teeth 89 on the faces of said setting members, by means of springs 90. Said clutch levers are disengaged by means of tappets 91, pivotedto a tappet member 92, slidingly supported in a position parallel with the shaft 80, one end-of said tappet member being supported in the bracket 80 the other end being attached to the slide 102, hereinafter described. The tappets are held in operative position by means of springs 93. The shaft 80 is mounted to rotate in its bearings, but rotatiofi is normally resisted by a spring 94, which'spring acts to return the shaft to a 25 66, by a spring 105.

predetermined position when said shaft is rotated and released.

Attached to the shaft 80 is a setting cam 95, provided with a plurality of cam faces 96, arranged to engage cam lever 75, to move the latter downward against the tension of spring 77. Said setting cam .is provided with an opening 97 to receive the end of a wedge-shaped arm 98 attached to the tap- .pet member 92. Saidtappet member is shifted longitudinally, by means of a depressiblecam 99, pivotally supported at 100,-

the cam portion of said member being arranged to engage a projection 101, attached v to a slide 102, the tappet member being also attached to said slide. A spring 103 acts to hold the slidein such position that the finger or projection 101 will normally lie in the path of movement of the cam 99. In

order to maintain a tension upon the arm against the direction of motion of said platen.

A spring catch 105 has a wedge shaped portion to engage the lever 103 to hold the roller 104 out of engagement when desired.

The roller 104 is mounted to rotate with more or less friction, and if desired the amount of friction may be Varied in suit-.

able manner, asby means of a nut 104. The spring 105 presses roller 104 against the platen 66, and the frictionproduced by the '40 said roller in its rotation, in contact with the platen, develops a, force tending to drag the roller in the direction of motion of the platen at that point, thereby tending to impart movement to the tone arm in the same direction. This is true irrespective of the direction of rotation of the platen.

In operation, a record body provided with -a multiple record, such as above described is placed in position upon the platen 66, the

sound box having been. moved to one side,

and also elevated, in the usual manner. The tone arm 87 is thenb'rought back over the'record. body, and the cam key 99 is depressed. As the cam 99 engages the projection 101, two operations simultaneously takeplace. First, the tappet member 92 is moved to the left as viewed in Fig. 9, causing the tappets 91- to temporarily disengage clutch levers 88from the setting members 81 and 82, whereupon said setting members will fly back against the depending portion 85 of the arm 86, under the influence" of the springs 84. The tappets pass beyond levers 88' so that said levers immediately reengage R setting members 81 and 82, which reengagefarthest point at either end of the rec-' 0rd, or to points suitably indicated upon the I record body. The cam key 99 is now released, and the indicator 79 is turned to the proper indication upon the scale below it. If manual operation only is desired, the pointer indicates Automatic off, if automatic operation is desired the pointer indicates Right. or Left as circumstances require. Assuming that the pointer indicates Left, as the tone arm 87 swings onits axis during the playing of the record, the engagement of setting members 81 and 82, with the arm 86, rocks the shaft 80, causing the cam 95 to move over the cam lever 75, thereby depressing the cam portion ofthe latter, so as to force downward the operating arm 72, immediately beneath the same, against the tension of spring 77, so as to bring said arm into the path of movement of the projections 69 on the disk 67 The downward movement of the cam portion 76 over the lever 72 permits the cam portion at the opposite end of lever 75 to move upwardly against the tension of the spring 77, thereby permitting the lever 73 to move up wardly so as to permit the pins 69 on the disk 68 to pass beneath said lever. As soon as one of the projections 69 on the disk 67,

engage the arm 72, the latter is carried around with the disk, the cam portion 76 insuring that the arm remains in engagement with said projection, thereby effecting a rotation of the cam shaft 70 bringing the arms 72 and 73 into the positions shown in Fig. 14. As the shaft 70 rotates the cam 71 is brought into engagement with the disk 68,'thereby I eflecting a longitudinal movement'of said shaft to disengage gear 62 from the pinion 64, and to engage gear 63 with said pinion, or vice versa. When the rotation has been reversed the cam 95 is moved to a position that will permit cam portion 7 6',- of cam lever 75, to be elevated and a corresponding cam portion 76, to be depressed by spring 77. Bythis means, arm 73 is forced downwardly into the path of the projections 69,

on disk 68, effecting a. return of cam 71, shaft 61', and pinions 62 and 63 to their original positions. In this manner rotation of the platen is reversed, the stylus is caused to engage the second part of the record which. is then played, the stylus being held in contact with the record in the manner heretofore fully described. When this recwith a groove in its surface,

I for selectively 0rd has been played the operation automatically repeats itself, by reversing and starting again. The setting must therefore be made at the extreme point of the double record so as to include the whole, but when once set the operation is continuous as long as the motor runs.

If desired, one wall may be left blank so that the machine may for ai time continue to run and the stylus continue to track without reproduction. The blank side may be'used simply as a return guide for automatic repetition.

Having thus explained the nature of my invention, and described an operative manner of constructing and using the same, although without attempting to set forth all of the forms in which it may be made, or all of the forms of its use, what I claim is 2- 1. The combination with a body provided said groove having a sound record on a side wall thereof, of means for moving said body, a diaphragm provided with a stylus, and means foriholding said stylus selectively in engagement with either side wall of said groove. g

2. As an improvement in sound recording and reproducing mechanism, a stylus, means for imparting lateral pressure thereto, and means for varying said pressure.

3. As an improvement in sound recording and re roducing mechanism, a stylus, and means or imparting lateral" pressure thereto in either direction. I

4. As an improvement .in-sound recording and reproducing mechanism, a stylus, means for imparting lateral pressure thereto in either direction, and means for varying said pressure. Y

5. The combination with a body provided with a spiral groove in its surface, sai groove having a sound record on the side walls thereof, ofmeans for rotating said body, a diaphragm provided with a stylus, and means. for holding said stylusselectively in engagement with either side wall of said groove.

6. The combination with a body provided with a spiral \groove in its surface, said groove having a sound record on the side walls thereof, of means 'for rotating said body,'a diaphragm provided with a stylus,

means for holding said stylus selectively in engagement with either side wall of sa1dgroove, and means for reversing the 'rota- I tion of said body.

'7. The'co'mbination with a body having a groove in its surface, the bottom and slde walls of said groove being respectively provided with individual sound records, of means for rotating said body, and. diaphragm mechanism provided with means engaging said records;

8. The combination with a body having a supporting member mounted .port, and means for groove in its surface, the bottom and side walls of said grooves being respectivel proreversing the rotation of said body.

9. An improvement 1n sound recording and reproducing apparatus, comprising a to swing on .a vertical axis, diaphragm mechanism carried thereby, and means cooperating with said support to exert a yielding lateral pressure thereon in either direction.

10. An improvement insound recording and reproducing apparatus, comprising a supporting member mounted to swing on a vertical axis, diaphragm mechanism carried thereby, means cooperating with said support. to exert a yielding lateral pressure thereon in either direction, and means for selectively controlling said pressure means.

11. The combination with a record support, and a tone arm mounted in operative relation thereto, of means for reversing the rotation of 'said record support setting mechanism for controlling said reversing means, for controlling the position of said setting mechanism.

and means attached to the tone armport, and means for rotating the same,of reversin mechanism, a setting cam controlling sai reversing mechanism, and means for controlling the position of said setting cam.

13. The combination with a record suprotating the same, of reversing mechanism, a rock shaft, a setting cam attached to said rock shaft and controlling said reversing mechanism, and means attached to said rock shaft for controlling the position of said cam.

14. The combination with a record support, and means for rotating the .same, o reversing mechanism, a rock shaft, a setting cam attached to said rock shaft and controlling said reversing mechanism, settin members connected with said r'ock sha and means for controlling'the position of said settin members.

15. Ihe combination with a record support, and means for rotating the same, of reversing mechanism, a rock shaft,,a-. setting cam attached to said rock shaft and controlling said reversing mechanism,'sprmg pressed setting members mounted upon sa1 d rock shaft, means for controlling the posltion of said setting members, and means for locking said setting members in. any adjusted position. I

16. The combination with a record support, and'means for rotating the f same, 'of reversing mechanism, a rock-shaft, a. settmg cam .attached to said rock shaft and con- 180 trolling said reversing mechanism, spring pressed setting members adj ustably mounted upon said rock shaft, means for controlling the position of said setting members, clutch levers pivoted to said rock shaft and normally engaging said setting members, and means for operating said levers.

17. The combination with a record support, and means for rotating the same, of reversing mechanism, a rock shaft, a setting cam attached to said rock shaft and controlling said reversing mechanism, spring pressed setting members adjustably mounted on said rock shaft, clutch levers pivoted to said rock shaft and normally engaging said setting members, a tappet member provided with means for disengaging said levers, and means for actuating said tappet member.

'18. The combination with a record support, and means for rotating the same, of reversing mechanism, a rock shaft, a setting cam attached, to said rock shaft and controlling said mechanism, setting mechanism for controlling the position of said cam, and

means for preventing movement of the cam during ad ustment of the setting mecha msm.

port, and a tone arm mounted in operative relation thereto, of means for rotating said record support, reversing mechanism, a rock shaft provided with means for controlling said reversing mechanism, setting members adjustably connected with said rock shaft, and a member attached to said tone arm for Icgontrolling the position of said setting memers.

20. The combination with a record support, and a tone arm mounted in operative relation thereto, of means for rotating said record support, reversing mechanism, a rock shaft provided with means for controlling said reversing mechanism, setting members adjustably connected with said rock' shaft, a member attached to said tone arm for controlling the position of said setting members, and means for maintaining a tension upon said tone arm member. 3

21. The combination with a record support, and a tone arm mounted in operative relation thereto, of means for rotating said record support, reversing mechanism, an

arm extending beneath said record support 1 and attached to said tone arm near its base and movabletherewith, and means cooperating with said arm for controlling said reversing mechanism.

22. The combination with a record support, and a tone arm mounted in operative relation thereto, of means for rotating said record support, reversing mechanism, an

arm extending beneath said record support and attached to the tone arm near its base and movable therewlth, means cooperating with said arm forcontrolling said reversing mechanism, and means connected to the tone arm near its base and cooperating with the record support for maintaining a tension on said arm. i

23. In a phonograph, the combination with a reproducer, and a record support provided with a drive pinion, of a drive shaft having forward and reverse gears arranged to selectively engage said pinion, and means cooperating with the reproduper for automatically shifting said drive shaft to selectively engage said gears and said drive pinion.

24:. In a phonograph, the combination with a reproducer, and a record support provided with a drive pinion, of a drive shaft having forward and reverse gears, arranged to engage said pinion, spaced apart disks attached to said drive shaft, and means 00- operating with the reproducer and engaging said disks to shift said drive shaft to selectively engage said gears with said drive pinion.

25. In a phonograph, the combination with a reproducer, and a record support provided with a drive pinion, of a drive shaft by said gears are selectively engaged with said drive pinion, and means for automatically operating said cam.

I 26. In a phonograph, the combination with a reproducer, and a record support provided. with a drive pinion, of a drive shaft having forward and reverse gears arranged -to engage said pinion; spaced apart disks attached to said drive shaft, a cam for engaging said disks to shift said shaft, whereby said gears are selectively engaged with said drive pinion,'means for automatically operating said cam, and means for controllingthe position of said cam. V

27. In a phonograph, 'the' combination with a reproducer, and a record support pro vided with a drive pinion, ofa drive shaft having forward and reverse gears arranged to engage said pinion, spaced apart disks attached to said drive shaft,and a cam shaft provided with a cam for engaging said disks, whereby said gears are selectively engaged with said drive pinion, said cam shaft and said disks being provided with complemental means for effecting rotation of said cam shaft.

28. In a phonograph, the combination with a reproducer, and a record support provided with a drive pinion, of a drive shaft having forward and reverse gears arranged to engage said pinion, spaced apart disks attached to said drive shaft, a cam shaft provided with a cam for engaging said with a cam for engaging said disks to v vided witha drive pinion,

disks, whereby said drive shaft is shifted to selectively engage said gears with said drive pinion, operating arms attached to said cam shaft, and means on said disks for engaging said operating arms.

29. In a phonograph, the combination with a reproducer, and a record support provided with a drive pinion, of a drive shaft having forward and reverse gears arranged to engage said pinion, spaced apart disks attached to said shaft and provided with peripheral projections, a cam shaft provildefd s i t said drive shaft, whereby said gears are selectively engaged with said drive pinion, operating arms attached to said cam shaft, and a cam lever for selectively depressing said operating arms into the path of movement of the projections on said disks.

30. In a phonograph, the combination with a reproducer, and a record support provided with a drive pinion, .of a drive shaft having forward and reverse gears arranged to. engage said pinion, spaced apart disks attachedto said shaft and provided with peripheral projections, a cam shaft provided with a camfor engaging said disks to shift said shaft, whereby said gears are selectively-engaged with said drive pinion, operating arms attached to said cam shaft, a lever for depressing one ofsaid arms into the path of movement of the projections on one of said disks, and means for automatically depressing said lever.

31. In a phonograph, the combination with a reproducer, and a record support proof a drive shaft having forward and reverse gears arranged to engage said pinion, spaced apart disks mg and reproduclng mechanism, a stylus,

attached to said shaft and provided with peripheral projections, a cam shaft provided with a cam for engaging said disks to shift said shaft, whereby said gears are selectively engaged with. said drive pinion, operating arms attached to. said cam shaft,

a lever for moving said arms selectively into' the path of movement of the projections of said disks, a setting cam for operating said lever, and means for controlling said setting cam.

32. In with a reproducer, means for rotating versing mechanism, a cam shaft provided with means for operating said reversing mechanism, and 'means for automatically a phonograph, the combination and a record support, of

operating said cam shaft.

33. In a' phonograph, the combination with a reproducer, and a record support, of means for rotating the same including reversing mechanism, a cam shaft provided with means for operating said reversing mechanism, means for operating said cam shaft, a setting cam controlling said cam the same including re-- gage said record, a

shaft operating means, and means for controlling said setting cam.

34. The combination with a body providedwith a groove in its surface, a stylus positioned to contact with a wall of said groove, and means for maintaining a lateral pressure upon the stylus to maintain the same in contact with said wall during movement of the record.

35. As an improvement in sound recording and reproducing mechanism, a record, means for imparting motion thereto, a stylus, and adjustable means associated with the record moving means for automatically maintaining a lateral pressure on said stylus.

36. As an improvement in sound recording and reproducing mechanism, a record, means for moving said record in either di rection, reversing means, a stylus, and means acting automatically to maintain a lateral pressure on said stylus in one direction or the other according to the direction of motion of said record.

37. As an improvement in sound recording and reproducing mechanism, a recordsupporting spindle, .a stylus, means for rotating said spindle, and means .operated through rotation of said spindle to produce pressure on said stylus. I

38. As an improvement in sound recording and reproducing mechanism, a rotatable mount for a sound record, a tone arm bearing a sound box having a stylus to engage 39. As an improvement in sound recorda record, means for rotating said record, and means cooperating with the record and operative during the rotation thereof for imparting pressure of said stylus on'said record.

40. As an improvement in sound record ing and reproducing mechanism, a stylus, means for imparting pressure thereto, and means for varying said pressure in either direction. T 41. As an improvement in sound recording and reproducing mechanism, a rotatable sound-record mount, a stylus to engage said record, a tone arm towhich said stylus is attached, and a friction wheel attached to said tone arm and pressing against said rotating mount for controlling the operation of said stylus.

i 42. As an improvement in sound recording and reproducing mechanism, a rotatable mount for a sound record, a stylus to entone arm to which said stylus is attached, a to said tone arm and pressing against said friction wheel attached I rotating mount, and means for maintaining said wheel in disengaged position. v

43. A sound record. comprising a body having its surface provided with a spiral groove, one side of which is recorded as a closing spiral, the other side being recorded as an opening spiral, and means for playing one side after another automatically.

- 44. The combination with a record body having a groove in its surface, said groove having a sound record on the opposite side walls thereof, of means for rotating said body, means forreversing the direction of said rotation at adjustable points, a dia-- phragm provided with a stylus, and means for holding said stylus selectively in engagement with either side wall of said groove.

45. The combination with a record body having a groove in its surface, said groove having a sound record on the opposite side walls thereof, of means for rotating said body, a .diaphragm provided with a stylus,

and means for holding said stylus selectively in engagement with either side wall of said groove. g

46. As an improvement in sound recording and reproducing mechanism, a stylus,

a'sound record having a groove of greater width than said stylus and provided with difierent sound records on the. walls thereof,

. witnesses.

and means whereby said stylus is shifted to selectively engage either wall of said groove.

47. As. an improvement in sound recording and reproducing mechanism, two contlnuously spaced apart record surfaces, a

stylus, and automatic means whereby said stylus may selectively engage either record surface, a groove therein containing a sound record on a wall thereof, a stylus to engage said groove, and meanswhereby said stylus .may track within said groove without engaging said sound record.

In testimony whereof I have hereunto set my hand presence of two subscribing CHARLES M. HE'CK, Witnesses: Y

CHAS. E. JoHNsoN, Jr.,

F. BYNUM. 

